Internal combustion engine



Nov. 8, 1932. l R, D. WEHR l 1,886,770

INTERNAL COMBUSTION ENGINE Nov. 8, 1932. R. D. wEHR INTERNAL COMBUSTION ENGINE Filed Aug. 12. 1930 y 4 Sheets-sheet INVENTOR I I @t O @kn /mcss B ATTonNEv Nov. 8, 1932.' R, D WEHR 1,886,770

INTERNAL coMBUsTIoN ENGINE Filed Aug. 412, 1930 4 Sheets-Sheet 3 Nov. 8, 1932. R D. WEHR 1,886,770

INTERNAL GOMBUSTION ENGINE Filed Aug. 12, 1930 4 Sheets-Sheet 4 Patented `Nov. 8, 1932' UNITED STATES ROBERT D. WEER, F LAKELAND, FLORIDA INTERNAL COMB'US'IION ENGINE Application led August 12, 1930. Serial No. 474,815.

This invention relates to an internal com-4 bustion engine, the general object of the invention being to provide a single. throw crank shaft with means for imparting rotary movement to the same from the engine pistons through means of a member which is rotatably mounted on the crank of the shaft and which is supported for oscillatory movement and t0 which the connecting rods of the pistons are connected.

Another object of the invention is to provide rotary cams for operating the rocker arms of the valves with means` for rotating the cams through gearing meshing with the geared part of the crank shaft.

This invention also consists in ce1-tain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specilically pointed out in the claim.

, In describing my invention in detail, reference will be had to the accompanying drawings, wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a vertical sectional view through the improved engine with parts in elevation.

Figure 2 is a top plan view.

Figure 3 is a section on the line 3 3 of Figure 1.

Figure 4 is a detail plan view showing how a cam carrying gear is rotated from the crank shaft and showing the Operation of the valve operating members by the cams. o

Figure 5 is a top plan view of the member for transmitting t e movement of the pistons to the crank shaft.

Figure 6 is a side View thereof.

Figure 7 is a bottom plan view thereof'.

Figure 8 is a section on the line 8 8 of Figure 5.

Figure 9 is a section on the line 9 9 of Figure 8.

Figure 10 is a section on the line 10-10 of Figure 5.

Figure 11 is a view of one of the pins for connecting a connecting rod with the said member. l 50 Figure 12 is a View of the connecting rod pin which is also connected with the rocker arm.

Figure 13 is a view of the pin which connects the opposite end of the rocker arm with the oscillatory member.

Figure 14 is a view of the stationary tubular member which carries the shaft for the hub of the rocker arm.

Figure 15 is a'top View of Figure 14.

Figure 16 is a sectional view showing how the rocker arm is mounted on the tubular member.

In these drawings the numeral 1 indicates a cylindrical base which is formed with the ears 2 which are adapted to be bolted to a 65 suitable support, parts of which are shown at 3. The cylinders 4 have their lower ends engaging holes in the disk and said cylinders are bolted to the disk as shown at 5. Each cylinder is provided with the usual head 6 which carries the spark plug 7 and the inlet and outlet Valves 8.

A crank case 9 is bolted to the under side of the disk and a shaft 10 passes through the bottom of the case and has ahead 11 connected with the upper-end thereof. A second shaft 12 extends downwardly into the crank case and has a head 13 connected with its lower end. The heads 11 and 13 are provided with the curved arms 14 and a pin 15 passes through one arm of one head and is threaded into the opposite arm to the other head. This pin is diagonally arranged as shown in Figure l and forms the crank of a crank shaft which is composed of the shafts l0 and 12. The other arms of the heads may have attached thereto counter-weights for counterbalancing the parts connected with the other arms.

A substantially cup-shaped member 16 of 4skeleton formation is rotatably arranged on the pin 15, suitable bearing means 17 bein placed between the pin and the walls of the opening in the member 16 through which the pin passes. The rim 18 of the cup-shaped member is formed with the radial bearing parts 17 for receiving the pins 19 and 19 to which the lower ends of the connecting rods 20 of the pistons 21 are connected. Each pin is formed with a attened central part over which the forked lower end of the connecting rod lits, and said `forked end is pivoted to the pin by a pin 22. Each bearing part 17 is formed with two portions spaced apart sothat the ends ofthe connecting rods can engage the pins between the portions.

A vertically arranged tubular member 23 encircles that \part of the shaft 12 which is located in the crank case and has a head 24 on its upper end which is bolted to the disk or base 1 and this member carries a horizontally iarranged, tubular projection 25 which is internally threaded to receive a stud 26. A rocker arm 27 has an offset, centrally arranged hub 28 which is rotatably mounted on the tubular projection 25 through means of the anti-friction means 29, the hub being of split construction so that it would be clamped to the outer ring of the anti-friction means by the bolt 30 which passes through the perforated holes at the ends of the hub. The inner ring of the antifriction means is held in place by the washer 31 and a nut 32 on the stud 26. The ends of the rocker arm 27 have threaded sockets therein, one of which receives the threaded end of the pin 19 and the other of which receives the threaded end of a pin 33 carried by a bearing part 34 on the rim 18 of the member 16. i

Ay plurality of gears 35 is supported for rotary movement from the upper face of the base 1 and these gears mesh with the teeth 36 formed on a part of the shaft 12. Each gear carries a pair of cams 37 and 38 on its upper face, the cam 37 being formed in two parts with the cam 38 arranged between said parts. The cam 37 is the exhaust cam and operates the tubular 'push rod 37" while the Cam 38 is the inlet cam and operates a rod 40 which passes through the tubular rod 39. The rods 39 and 40 are provided with the pins 41 at their upper ends for engaging the rocker arms 42 of the valves 8, the pin of the rod 40 passing throughV a slot 43 in the upper end of the tubular rod 39.

The tubular rods are guided in guideways 44 formed in the walls of a gear housing 45 having its lower end connected with the base 1, and the top 46 of which is detached and has a hole therein through which the shaft 12 passes.

The bearing parts are provided with suitable bushings 47 and anti-friction bearings 48 are provided for that part of the shaft 12 which passes through the base and the cover of the gear housing, and anti-friction means 49 are also provided for the shaft 10.

From the foregoing it will be seen that the member 16 is given an oscillatory movement by the movement of the pistons about the axis formed by the tubular part 25 on the member 23, and due to the location and arrangement of the parts this oscillatory movement imparts a rotary movement to the crank shaft composed of the shafts 10 and 12, and also the crank 15. The rotary movement of the shaft 12 is imparted to the cam carrying gears, the cams of which operate the valves through the rods 39 and 40.

The drawings show the engine as having five cylinders and the order of firing is given in Figure 3 with the relative position of the cams with the rods shown in Figure 4. It will be seen that all the centers wear olf the center forming the pivotal point of the rocker arm.

It is thought fromthe foregoingdescription that theV advantages'and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts,

provided that such changes fall within' the scope of the appended claim.

What I claim is:

In an internal combustion engine, the combination of a rotatable head having opposed outwardly curved arms, a rocker member forming a dished spider centrally pivoted to one of the arms of the head andhaving pe ripherally arranged sleeve-like bearings disposed radially thereof and at right angles to its pivotal axis, a tubular member aligned with the axis of the head and stationarily supported, a rocker arm having an ofl'set central hub pivotally connected to the tubular member, threaded socketed extensions on the ends of said rocker arm, pins engaged in said socketed extensions and swiveled in diametrically opposed sleeve-like bearings of the rocker member, a second head havlng curved arms, one arm thereof being connected with the pivotal connection of the rocker member with the first named head, and connecting rods for pistons pivotally associated with certain of said pins.

In testimony whereof I affix my signature. l

ROBERT D. WEI-IR. 

